Preparation method and expansion preparation device of soil heavy metal repair agent
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A technology for preparing devices and heavy metals, applied in fertilization devices, soil conditioning materials, chemical instruments and methods, etc., can solve problems such as poor puffing effect, increase soil fertility, and complex puffing process, and achieve stable effects, increase soil fertility, and technology. Implement simple effects
Active Publication Date: 2019-06-25
北京贵清科技有限公司
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[0006] For this reason, the embodiment of the present invention provides a method for preparing a soil heavy metal remediation agent and an expanded preparation device, realizing a low-cost, high-efficiency composite heavy metal pollution remediation technology and remediation agent, and the remediation agent has long-term stable passivation repair. Effect, does not introduce secondary pollution and can increase soil fertility, which is conducive to the formation of plant nutrients. At the same time, the expansion device solves the problems of poor expansion effect and complicated expansion process in the process of repairing agent preparation.
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Embodiment 1
[0039] like figure 1 and figure 2 Shown, the present invention provides a kind of preparation method of soil heavy metal remediation agent, it is characterized in that, comprises steps:
[0040] S100, using the purge system to filter the rough selection of biological by-products, and perform preliminary crushing;
[0041] S200, adding a catalyst to the pulverized biological by-products, and then performing high-temperature and pressure cooking to hydrolyze hard protein;
[0042] S300, adding a reactant to the hydrolyzed biological by-products, and then performing high-temperature puffing, low-temperature fermentation, dehydration, and drying to make a preliminary product;
[0043] S400, crushing, purging and filtering the preliminary product again to form a final product.
[0044] The biological by-products include feathers, hoof shells, hair and horn feathers of poultry or livestock, epidermis and viscera of slaughtered poultry or livestock, and some plant fruits with hig...
Embodiment 2
[0084] The present invention also provides an expansion device for producing a restoration agent, specifically a soil heavy metal restoration agent expansion preparation device, comprising a hyperbaric cabin 1 provided with a feed inlet 11 and a discharge outlet 12, and a hyperbaric cabin installed on the hyperbaric cabin The material flat pressure mechanism 2 in 1, the fluidized transfer bed 3 is arranged between the material flat pressure mechanism 2 and the feed port 11, and the seal connection between the feed port 11 and the fluidized transfer bed 2 makes the feed port 11 is incompletely isolated from the inside of the hyperbaric cabin 1, which facilitates the formation of air pressure difference;
[0085] The outlet 12 is connected with the expansion chamber 4, the side wall of the hyperbaric cabin body 1 at the bottom is connected with the steam generating device 6 through the air supply pipeline 5, and the top of the hyperbaric cabin body 1 is connected to the steam gen...
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Abstract
The embodiment of the invention discloses a preparation method of a soil heavy metal repair agent. The preparation method comprises the steps that a biological by-product is roughly screened and crushed; after a catalyst is added, high-temperature pressurized digesting is conducted; after a reaction agent is added, high-temperature expansion, low-temperature fermentation, dehydrating and drying are conducted, and thus a preliminary product is prepared; and the preliminary product is crushed again and subjected to purging filtering, and thus a final product is formed. An expansion preparation device of the soil heavy metal repair agent comprises a high-pressure compartment provided with a feeding inlet and a discharging outlet, and a material flat-crushing mechanism mounted in the high-pressure compartment, a fluidifying material-transferring bed is arranged between the material flat-crushing mechanism and the feeding inlet, the discharging outlet is connected with an expansion cavity,the side wall of the near-bottom of the high-pressure compartment is connected with a steam generating device through an air delivery pipeline, the top of the high-pressure compartment is connected tothe steam generating device through a circulating pipeline, and a pressure relief valve is arranged on the circulating pipeline. The soil heavy metal repair agent has a long-term stable passivation repair effect, secondary pollution is avoided, soil fertility can be increased, and phytonutrients are formed advantageously.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of remediation of heavy metal pollution, and in particular to a method for preparing a soil heavy metal remediation agent and a puffing preparation device. Background technique [0002] At present, the research on soil in-situ passivation restoration technology is developing rapidly. By introducing passivators such as silicon-calcium substances, phosphorus-containing substances, organic materials, metals and their oxides into the remediation target soil, the immobilization / stabilization of heavy metals can be achieved. process, reduce its bioavailability and mobility of heavy metal ions, and achieve the purpose of soil function restoration; [0003] Calcium silicon is represented by lime. The application of lime in farmland increases the soil pH, promotes the adsorption of heavy metal cations, forms heavy metal silicate precipitation and reduces the mobility and bioavailability of h...
Claims
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